A Qualys audit patch, represented in the commit below,
added the _exit() call to our abnormal signal handler.
Unfortunately, that disabled the associated core dump.
This patch restores expected behavior of those signals
whose default produces a core dump file + termination.
Reference(s):
commit 7bd4f0b6d7e058197ccf4234f2a0bcc17550d0a6
Signed-off-by: Jim Warner <james.warner@comcast.net>